Merge: ahci: driver update

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/merge_requests/730

JIRA: https://issues.redhat.com/browse/RHEL-72617

A driver update.

Signed-off-by: Tomas Henzl <thenzl@redhat.com>

Approved-by: Chris Leech <cleech@redhat.com>
Approved-by: Ewan D. Milne <emilne@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: Julio Faracco <jfaracco@redhat.com>

Author: jcfaracco

Documentation/admin-guide/kernel-parameters.txt

@@ -3033,6 +3033,8 @@
 			* max_sec_lba48: Set or clear transfer size limit to
 			  65535 sectors.
 
+			* external: Mark port as external (hotplug-capable).
+
 			* [no]lpm: Enable or disable link power management.
 
 			* [no]setxfer: Indicate if transfer speed mode setting

drivers/ata/ahci.c

@@ -63,6 +63,7 @@ enum board_ids {
 	board_ahci_pcs_quirk_no_devslp,
 	board_ahci_pcs_quirk_no_sntf,
 	board_ahci_yes_fbs,
+	board_ahci_yes_fbs_atapi_dma,
 
 	/* board IDs for specific chipsets in alphabetical order */
 	board_ahci_al,
@@ -188,6 +189,14 @@ static const struct ata_port_info ahci_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
+	[board_ahci_yes_fbs_atapi_dma] = {
+		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS |
+				 AHCI_HFLAG_ATAPI_DMA_QUIRK),
+		.flags		= AHCI_FLAG_COMMON,
+		.pio_mask	= ATA_PIO4,
+		.udma_mask	= ATA_UDMA6,
+		.port_ops	= &ahci_ops,
+	},
 	/* by chipsets */
 	[board_ahci_al] = {
 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
@@ -589,6 +598,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	  .driver_data = board_ahci_yes_fbs },
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
 	  .driver_data = board_ahci_yes_fbs },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9215),
+	  .driver_data = board_ahci_yes_fbs_atapi_dma },
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
 	  .driver_data = board_ahci_yes_fbs },
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9235),
@@ -1665,18 +1676,20 @@ static int ahci_get_irq_vector(struct ata_host *host, int port)
 	return pci_irq_vector(to_pci_dev(host->dev), port);
 }
 
-static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
+static void ahci_init_irq(struct pci_dev *pdev, unsigned int n_ports,
 			struct ahci_host_priv *hpriv)
 {
 	int nvec;
 
-	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
-		return -ENODEV;
+	if (hpriv->flags & AHCI_HFLAG_NO_MSI) {
+		pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_INTX);
+		return;
+	}
 
 	/*
 	 * If number of MSIs is less than number of ports then Sharing Last
 	 * Message mode could be enforced. In this case assume that advantage
-	 * of multipe MSIs is negated and use single MSI mode instead.
+	 * of multiple MSIs is negated and use single MSI mode instead.
 	 */
 	if (n_ports > 1) {
 		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
@@ -1685,7 +1698,7 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
 			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
 				hpriv->get_irq_vector = ahci_get_irq_vector;
 				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
-				return nvec;
+				return;
 			}
 
 			/*
@@ -1700,12 +1713,13 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
 
 	/*
 	 * If the host is not capable of supporting per-port vectors, fall
-	 * back to single MSI before finally attempting single MSI-X.
+	 * back to single MSI before finally attempting single MSI-X or
+	 * a legacy INTx.
 	 */
 	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
 	if (nvec == 1)
-		return nvec;
-	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
+		return;
+	pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX | PCI_IRQ_INTX);
 }
 
 static void ahci_mark_external_port(struct ata_port *ap)
@@ -1985,10 +1999,8 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 	host->private_data = hpriv;
 
-	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
-		/* legacy intx interrupts */
-		pcim_intx(pdev, 1);
-	}
+	ahci_init_irq(pdev, n_ports, hpriv);
+
 	hpriv->irq = pci_irq_vector(pdev, 0);
 
 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)

drivers/ata/ahci.h

@@ -246,6 +246,7 @@ enum {
 	AHCI_HFLAG_NO_SXS		= BIT(26), /* SXS not supported */
 	AHCI_HFLAG_43BIT_ONLY		= BIT(27), /* 43bit DMA addr limit */
 	AHCI_HFLAG_INTEL_PCS_QUIRK	= BIT(28), /* apply Intel PCS quirk */
+	AHCI_HFLAG_ATAPI_DMA_QUIRK	= BIT(29), /* force ATAPI to use DMA */
 
 	/* ap->flags bits */
 
@@ -328,7 +329,7 @@ struct ahci_port_priv {
 struct ahci_host_priv {
 	/* Input fields */
 	unsigned int		flags;		/* AHCI_HFLAG_* */
-	u32			mask_port_map;	/* mask out particular bits */
+	u32			mask_port_map;	/* Mask of valid ports */
 
 	void __iomem *		mmio;		/* bus-independent mem map */
 	u32			cap;		/* cap to use */
@@ -379,6 +380,21 @@ struct ahci_host_priv {
 						  int port);
 };
 
+/*
+ * Return true if a port should be ignored because it is excluded from
+ * the host port map.
+ */
+static inline bool ahci_ignore_port(struct ahci_host_priv *hpriv,
+				    unsigned int portid)
+{
+	if (portid >= hpriv->nports)
+		return true;
+	/* mask_port_map not set means that all ports are available */
+	if (!hpriv->mask_port_map)
+		return false;
+	return !(hpriv->mask_port_map & (1 << portid));
+}
+
 extern int ahci_ignore_sss;
 
 extern const struct attribute_group *ahci_shost_groups[];

drivers/ata/ahci_brcm.c

@@ -288,6 +288,9 @@ static unsigned int brcm_ahci_read_id(struct ata_device *dev,
 
 	/* Re-initialize and calibrate the PHY */
 	for (i = 0; i < hpriv->nports; i++) {
+		if (ahci_ignore_port(hpriv, i))
+			continue;
+
 		rc = phy_init(hpriv->phys[i]);
 		if (rc)
 			goto disable_phys;
@@ -571,7 +574,7 @@ static SIMPLE_DEV_PM_OPS(ahci_brcm_pm_ops, brcm_ahci_suspend, brcm_ahci_resume);
 
 static struct platform_driver brcm_ahci_driver = {
 	.probe = brcm_ahci_probe,
-	.remove_new = brcm_ahci_remove,
+	.remove = brcm_ahci_remove,
 	.shutdown = brcm_ahci_shutdown,
 	.driver = {
 		.name = DRV_NAME,

drivers/ata/ahci_ceva.c

@@ -206,6 +206,9 @@ static int ceva_ahci_platform_enable_resources(struct ahci_host_priv *hpriv)
 		goto disable_clks;
 
 	for (i = 0; i < hpriv->nports; i++) {
+		if (ahci_ignore_port(hpriv, i))
+			continue;
+
 		rc = phy_init(hpriv->phys[i]);
 		if (rc)
 			goto disable_rsts;
@@ -215,6 +218,9 @@ static int ceva_ahci_platform_enable_resources(struct ahci_host_priv *hpriv)
 	ahci_platform_deassert_rsts(hpriv);
 
 	for (i = 0; i < hpriv->nports; i++) {
+		if (ahci_ignore_port(hpriv, i))
+			continue;
+
 		rc = phy_power_on(hpriv->phys[i]);
 		if (rc) {
 			phy_exit(hpriv->phys[i]);
@@ -402,7 +408,7 @@ MODULE_DEVICE_TABLE(of, ceva_ahci_of_match);
 
 static struct platform_driver ceva_ahci_driver = {
 	.probe = ceva_ahci_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = ceva_ahci_of_match,

drivers/ata/ahci_da850.c

@@ -238,7 +238,7 @@ MODULE_DEVICE_TABLE(of, ahci_da850_of_match);
 
 static struct platform_driver ahci_da850_driver = {
 	.probe = ahci_da850_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = ahci_da850_of_match,

drivers/ata/ahci_dm816.c

@@ -182,7 +182,7 @@ MODULE_DEVICE_TABLE(of, ahci_dm816_of_match);
 
 static struct platform_driver ahci_dm816_driver = {
 	.probe = ahci_dm816_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.driver = {
 		.name = AHCI_DM816_DRV_NAME,
 		.of_match_table = ahci_dm816_of_match,

drivers/ata/ahci_dwc.c

@@ -478,7 +478,7 @@ MODULE_DEVICE_TABLE(of, ahci_dwc_of_match);
 
 static struct platform_driver ahci_dwc_driver = {
 	.probe = ahci_dwc_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.shutdown = ahci_platform_shutdown,
 	.driver = {
 		.name = DRV_NAME,

drivers/ata/ahci_imx.c

@@ -511,7 +511,7 @@ static int imx_sata_enable(struct ahci_host_priv *hpriv)
 
 	if (imxpriv->type == AHCI_IMX6Q || imxpriv->type == AHCI_IMX6QP) {
 		/*
-		 * set PHY Paremeters, two steps to configure the GPR13,
+		 * set PHY Parameters, two steps to configure the GPR13,
 		 * one write for rest of parameters, mask of first write
 		 * is 0x07ffffff, and the other one write for setting
 		 * the mpll_clk_en.
@@ -1027,7 +1027,7 @@ static SIMPLE_DEV_PM_OPS(ahci_imx_pm_ops, imx_ahci_suspend, imx_ahci_resume);
 
 static struct platform_driver imx_ahci_driver = {
 	.probe = imx_ahci_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = imx_ahci_of_match,

drivers/ata/ahci_mtk.c

@@ -174,7 +174,7 @@ MODULE_DEVICE_TABLE(of, ahci_of_match);
 
 static struct platform_driver mtk_ahci_driver = {
 	.probe = mtk_ahci_probe,
-	.remove_new = ata_platform_remove_one,
+	.remove = ata_platform_remove_one,
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = ahci_of_match,